I think they've been trying to figure out ways to regulate bitcoin for the past couple years, but it's a really hard problem to crack. With things being decentralized there's no specific point anyone can try to impose rules. There's been decent pushback from the banking industry though, I've heard lots of banks have tried to directly prohibit people from spending money on website like coinbase. They eventually caved and allowed it, but it took people threatening to take their funds elsewhere. Who knows where this next battlefield will be.